application

Polyethylene pombi yekugadzira maitiro ndeye extrusion nzira ye granular zvinhu zvinounzwa kunze kune extruder uye kupisa.

Kugadzirwa kwepombi yepolyethylene

Izvo zvinhu zvinozogadziriswa ne screw (spiral rod) kuti isundidzwe uye yobva yaburitswa kubva kune extruder kupinda muforoma.Chikafu chakabikwa mushure mekusiya mold, cross calibrator uye vacuum tank pressure zvakaumbwa zvakakodzera.Pakubuda mu calibrator chubhu pamusoro nezvikamu zvekuyerera kwemvura inotonhodzwa.
Iyo yakanyanya tembiricha yakanyungudutswa yepolyethylene tangi mushure mekubviswa kubva muforoma muvacuum uyezve zvishoma nezvishoma kutonhora matangi kunoderedzwa uchishandisa mvura inotonhora.
zviyero zvakananga uye kucheka.
Yese maitiro ekugadzira anonyatso otomatiki nemidziyo inodzora uye yekutarisa mhando yechigadzirwa chekupedzisira inogamuchirwa uye zita rekambani uye zviyero.
Routine bvunzo polyethylene pombi kugadzirwa
PE pombi yekugadzira bvunzo mapoka ndeaya anotevera:
Melt flow index (INSO 6980-1)
Kusarudza density (INSO 7090-1)
Sarudzo yesoot (ISO 6964)
Kugoverwa kwesoot (ISO 18553)
Tensile bvunzo (ISO 6259-1,3)
Hydrostatic pressure test (ISIRI 12181-1,2)
Burst pressure test (ASTM D 1599)
Kudzokera kune thermal test (INSO 17614)
Kuyera uye kuona kwekuongorora chubhu (INSO 2412)
Thermal kugadzikana bvunzo pamberi peokisijeni OIT (ISIRI 7186-6)

Melt flow index (INSO 6980-1):
Muyedzo iyi, iyo inonyungudika kuyerera mwero inoyerwa panguva yakatarwa uye tembiricha, kune mhedzisiro, maitiro ekubata zvinhu mukati me extruder inofanirwa kutariswa.
Iyo raw material bvunzo (yekusimbisa kunaka kwezvinhu) pamwe nepamusoro pechigadzirwa.MFI kukosha kwechigadzirwa hakufanirwe kudarika 20% ± iyo mbishi zvinhu zvakasiyana MFI.
• Kuona density (INSO 7090-1)
Iyo density yezvigadzirwa uye chigadzirwa density flotation nzira uchishandisa chaiyo fluid chiyero nehumwe density inotarwa.Iyo "nhamba density yechigadzirwa, kunaka kwemaitiro ekugadzira.
• kutema soot (ISO 6964) uye kugoverwa kwesoot (ISO18553)
Soot mune zvigadzirwa uye chigadzirwa chekupedzisira chinotemwa.
Iyo inotenderwa muzana yekabhoni nhema mupombi yepolyethylene 2 kusvika 5.2% huremu iyo inofanirwa kugoverwa zvakaenzana pairi.

• Kuedzwa (ISO 6259-1,3)
Uchishandisa rabhoritari yakasarudzika, iyo mechanic zvimiro zvepombi yepolyethylene, inosanganisira yakanyanya simba kurwisa mutoro wekunze, kureba panguva yekuzorora, coefficient of elasticity uye kutsauka pasi pemitoro mapoinzi matatu anogona kuyerwa uye zvinoenderana nemhedzisiro yebvunzo, tinogona kuongorora kushanda kwechigadzirwa panguva yekushanda.
• Hydrostatic pressure test (ISIRI 12181-1,2)
Kuti uongorore simba rechigadzirwa kurwisa hydrostatic pressure test inoitwa., akaiswa pasi pekumanikidzwa kwemukati nguva dzose.
Chero chakakanganisika mumasamples (kutsemuka, kuputika, kuzvimba kwenzvimbo, kudonha nekutsemuka kwakanaka) kureva kuti chigadzirwa chakundikana.
• Kuputika kwekumanikidza kuedza (ASTM D 1599)
Mukuedza uku, sampuli chubhu inoyangarara mudziva ine tembiricha isingaperi ye23 ° C uye yozoiswa pasi pekuwedzera kumanikidzwa kwemukati, kuitira kuti nekufamba kwenguva 60 kusvika 70 masekonzi, kuzvimba uye ipapo kukonzera kutsemuka.

Tube isina kutsemuka kana kuputika neiyo longitudinal slot haina kuchengetedzeka kuti ishandiswe.
• Muedzo wekudziya wekumashure (ISO 2505)
Hurefu hwemasendimita makumi maviri emasampuli mune imwe, nekutenderera kwemhepo inopisa (2 ± 110) ° C kweawa imwe kusvika kumatatu (maererano nemadziro emadziro epombi), uye mushure mekutonhora ndiko kureba kwechubhu, kuchava kushoma pane. kutanga mamiriro panguva tembiricha, izvo zvinogona kutungamirira kuchinja maitiro mapaipi akaiswa mupombi kumativi, saka pamusoro bvunzo muganhu longitudinal kuchinja (kusvika 3%) murabhoritari.

• kuyerwa uye kuona kwechubhu yekuongorora (INSO 2412)
Mapombi epolyethylene anofanirwa kunge asina hukasha (mukati nepamusoro) uye mapores akadzika.Madhindi madiki kana akasadzikisa ukobvu kusvika pasi peinogumira, haakoshesi.
Chaiyo kudomwa kwepombi madziro ukobvu uchishandisa ultrasonic ukobvu gauge calibrated caliper pachikamu chekucheka panguva yehwamanda.
Iyo dhayamita yekunze yechubhu uchishandisa graded simbi mabhendi (Sykrvmtr) uye pamwe nebazi akayerwa uye avhareji kukosha kunoshumwa.